Microsoft 365 introduces changes to High Volume Email and extends Basic Authentication May 7, 2025 by admin Tweet Microsoft 365 has received changes to High Volume Email (HVE) and has extended the deadline to switch from Basic Authentication. Read more… Neowin Related Posts:Microsoft 365 launches High Volume Email in public…Outlook personal email accounts will need more than…Microsoft gives final warning about Basic Auth…Windows 11 gets redesigned volume mixer with new featuresMicrosoft is working with Apple on an iOS update to…